Get a unique String for a given AnyObject?
func hashString (obj: AnyObject) -> String { return String(ObjectIdentifier(obj).uintValue)}let id = hashString(obj)Swift 3.0
return String(UInt(ObjectIdentifier(obj))Swift 4.1
return String(UInt(bitPattern: ObjectIdentifier(obj)))
How about a direct translation:
func pointerToString(objRef: NSObject) -> String { return NSString(format: "%p", objRef)}A more native way (in decimal, not hex):
func pointerToString(objRef: AnyObject) -> String { return withObjectAtPlusZero(objRef, { ptr in "\(UnsafePointer<RawByte>(ptr) - nil)" })}func pointerToString(objRef: AnyObject) -> String { let ptr: COpaquePointer = Unmanaged<AnyObject>.passUnretained(objRef).toOpaque() return "\(UnsafePointer<RawByte>(ptr) - nil)"}Update: Pointers stringify correctly now, so you can just do
func pointerToString(objRef: AnyObject) -> String { let ptr: COpaquePointer = Unmanaged<AnyObject>.passUnretained(objRef).toOpaque() return "\(ptr)"}
Swift 4.1
String(UInt(bitPattern: ObjectIdentifier(obj)))@aleclarson's answer update
func hashString(obj: AnyObject) -> String { return String(UInt(bitPattern: ObjectIdentifier(obj)))}let id = hashString(obj)